Estimating HIV Prevalence in Malaysia Method Multi-parameter evidence synthesis methods were applied to combine all available relevant data sources Results An estimated 454,000 (95% [CrI]: 392,000 to 535,000) HCV Ab positive individuals were living in Malaysia in 2009 2.5% of the adult population Route of probable transmission - active or a previous history of IDU Females represented 1% (95% CrI: 0.6 to 1.4%) of all HCV infections, 92% (95% CrI: 88 to 95%) were attributable to non-drug injecting routes of transmission SA McDonald, A Kamarulzaman et al.